Meta Data Scientist Interview Questions
Meta’s Data Scientist interviews target candidates who can turn large-scale product data into clear, measurable product decisions. Expect a blend of technical and product-focused assessments: Meta Data Scientist interview questions often probe SQL and Python data manipulation, statistical inference and A/B test design, metric definition and instrumentation, and product sense around engagement and growth. Distinctive to Meta is the emphasis on scale, experimentation, and the ability to communicate actionable insights to engineers and product managers; interviewers typically evaluate both analytical rigor and storytelling clarity. The process usually begins with a recruiter screen, moves to one or more technical screens (coding/SQL plus a product or metrics case), and culminates in a loop of interviews that combine analytics, research-design, and behavioral rounds. For effective interview preparation, prioritize timed practice on data manipulation problems, refresh hypothesis testing and power intuition, rehearse product-metric case studies aloud, and craft concise STAR stories that emphasize measurable impact. Complement technical practice with mock interviews and clear explanations of tradeoffs so you can translate analyses into product recommendations under time pressure.

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."
Construct a 95% Confidence Interval for Comment Counts
Comment Activity Analysis: Mean CI, Sampling Distribution, and 95th Percentile Context You have a simple random sample of users with their comment cou...
Explain Statistical Concepts in A/B Testing and Corrections
A/B Testing: p-values, Power, and Error Rates with Multiple Comparisons Context You are reviewing the results of an online A/B experiment. Stakeholder...
Determine User Need for In-App Video Call Feature
Scenario A consumer messaging app is considering launching an in-app Video Call feature. You have access to full historical user and call data (e.g., ...
Design Metrics to Measure Inappropriate Content Severity and Prevalence
Harmful-Content Detection: Measurement Plan and Experiment Design Objective You are launching a new harmful-content detection system and must define h...
Calculate Probability of Honest and Relevant Chatbot Answers
Chatbot Evaluation: Honesty and Relevance Scenario You are evaluating a customer-service chatbot. Define two events for any given answer: - H: the ans...
Calculate Conversion Probability for Male Ad Impressions
Scenario You are estimating conversion probabilities for ad impressions. Before knowing a user's gender, the overall conversion rate is 2%. Given - P(...
Describe Handling Conflict in Team Projects and Collaboration
Behavioral & Leadership (Onsite) — Data Scientist Scenario You are interviewing for a Data Scientist role with an onsite behavioral and leadership foc...
Analyze Algorithm's Impact on Diverse Demographics and Validate Causes
A/B Test: Heterogeneous Lift in CTR for a New Ad-Ranking Algorithm Context You ran a user-level A/B test of a new ad-ranking algorithm. The reported r...
Describe Handling Conflict and Providing Constructive Feedback
Behavioral & Leadership Interview Prompts (Data Scientist) Context You are interviewing onsite for a Data Scientist role. Prepare concise, data-driven...
Evaluate Probability of Positive User Comments and Model Performance
Social-Media Positivity: Independence and Model Comparison Context You are evaluating user comment sentiment and the performance of two models that cl...
Evaluate Success of Group Video Feature with Key Metrics
Evaluate the Success of a New Group Video Feature Context You are assessing the launch of a Group Video feature on a social media platform. The featur...
Design A/B Test to Evaluate Payment Method Impact
A/B Experiment Design: New Payment Method Rollout Context You are evaluating whether to launch a new payment option across a country. Before launch, y...
Evaluate Product-Ranking Algorithm with Precision and Recall Metrics
Scenario Instagram Shopping wants to improve its product‑ranking algorithm for the shopping feed. The goal is to select and order products for each us...
Analyze Seller Activity and Vehicle Listing Interactions
listing_interaction +-----------+-----------+------------+------------+----+ | buyer_id | seller_id | date | product_id | li | +-----------+---...
Quantify Latent Demand for Group Video Calling Feature
Scenario A consumer messaging app is preparing to launch group video calling. You have access to rich data: message logs (timestamps, thread IDs), fri...
Determine Probability of Fourth Good Response After Three Successes
Evaluating Good-Response Rates for Chatbot Outputs Context You are evaluating chatbot/LLM responses. Treat each response as a Bernoulli trial (good vs...
Identify Algorithms for Detecting Malicious Duplicated Content
Detecting Malicious Duplicated Text (DOT) Scenario You are selecting technical approaches for DOT, a bot‑detection tool aimed at finding malicious dup...
Reflect on Conflict Resolution and Key Learnings
Behavioral Interview Prompts (Data Scientist, Onsite) Instructions Use the STAR framework (Situation, Task, Action, Result). Focus on impact, metrics,...
Demonstrate Culture Fit and Motivation in Meta Interview
Behavioral Interview: Culture Fit and Motivation (Meta — Data Scientist, Onsite) Prompt Answer the following using the STAR framework (Situation, Task...
Describe Facebook User Comment Distribution Shape and Justification
Characterizing Comments per User on Facebook Context You are analyzing the number of comments made by each user over a fixed time window (e.g., 30 day...